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Top Forums Shell Programming and Scripting Help with validation of URLs in shell script Post 303007957 by RudiC on Friday 24th of November 2017 03:56:20 AM
Old 11-24-2017
Please become accustomed to provide decent context info of your problem.

It is always helpful to carefully and detailedly phrase a request, and to support it with system info like OS and shell, related environment (variables, options), preferred tools, adequate (representative) sample input and desired output data and the logics connecting the two including your own attempts at a solution, and, if existent, system (error) messages verbatim, to avoid ambiguities and keep people from guessing.
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bibtexconv(1)						    BSD General Commands Manual 					     bibtexconv(1)

NAME
bibtexconv -- BibTeX Converter SYNOPSIS
bibtexconv BibTeX_File [-export-to-bibtex=file] [-export-to-separate-bibtexs=prefix] [-export-to-xml=file] [-export-to-separate-xmls=prefix] [-nbsp=string] [-non-interactive] [-check-urls] [-only-check-new-urls] [-store-downloads=directory] [-add-url-command] [-skip-notes-with-isbn-and-issn] [-add-notes-with-isbn-and-issn] DESCRIPTION
bibtexconv is a BibTeX file converter which allows one to export BibTeX entries to other formats, including customly defined text output. Furthermore, it provides the possibility to check URLs (including MD5, size and MIME type computations) and to verify ISBN and ISSN numbers. bibtexconv provides an interactive mode (usually used in form of export scripts) which allows for fine-granular selection of entries, sorting and export template specification. OPTIONS
The following arguments may be provided: BibTeX_File The BibTeX input file. -export-to-bibtex=file Write the results as BibTeX into the given file. -export-to-separate-bibtexs=prefix Write the results as BibTeX; for each entry, an own file will be created. The filename will be generated from given prefix (e.g. "/tmp/MyBibTex-"), the entry key and ".bib". -export-to-xml=file Write the results as XML (as used by IETF Internet Draft processing tools) into the given file. -export-to-separate-xmls=prefix Write the results as XML; for each entry, an own file will be created. The filename will be generated from given prefix (e.g. "/tmp/MyBibTex-"), the entry key and ".xml". -nbsp=string Replace non-breakable space by given string (for example, "&nbsp;" when writing HTML). -check-urls Check URLs by downloading the content file and adding MD5, size and MIME type entries. -only-check-new-urls Combined with -check-urls, checks are only performed for new entries where MD5, size and/or MIME type are still unknown. -store-downloads=directory Combined with -check-urls, all checked references are downloaded and stored in the given directory. Existing files will be overwrit- ten. -add-url-command Add url{} commands to url tags in BibTeX export. -skip-notes-with-isbn-and-issn When reading the BibTeX file, ignore "note" items with ISBN and ISSN. -add-notes-with-isbn-and-issn When writing a BibTeX file, create "note" items with ISBN and ISSN. -non-interactive Turns on non-interactive mode. Useful for just performing URL checks and ISBN/ISSN verification. COMMANDS
After startup, bibtexconv accepts the following commands from standard input (not as command-line arguments!): cite key custom1 custom2 custom3 custom4 custom5 Select specific entry in the input BibTeX file, given by key. Optionally, up to five custom strings may be attached to the selected entry. citeAll Select all entries in the input BibTeX file. clear Clear all selections. echo string Write given string to standard output. export Export selected entries to standard output, according to configured printing template. header include file Include another export script, given by file name. monthNames jan feb mar apr may jun jul aug sep oct nov dec Changes textual representation of month names. This is necessary when non-English names are required for export. nbsp Changes textual representation of the "non-breakable space", for example &nbsp; in HTML or ~ in BibTeX. sort template template+ templatenew trailer utf8Style xmlStyle EXAMPLES
Have a look into /usr/share/doc/bibtexconv/examples/ (or corresponding path of your system) for example export scripts. The export scripts contain the commands which are read by bibtexconv from standard input. bibtexconv /usr/share/doc/bibtexconv/examples/ExampleReferences.bib -export-to-bibtex=UpdatedReferences.bib -check-urls -only-check-new-urls -non-interactive Checks URLs of all entries in /usr/share/doc/bibtexconv/examples/ExampleReferences.bib, adds MD5, size and MIME type items and writes the results to UpdatedReferences.bib. bibtexconv /usr/share/doc/bibtexconv/examples/ExampleReferences.bib </usr/share/doc/bibtexconv/examples/web-example.export >MyPublications.html Uses export script /usr/share/doc/bibtexconv/examples/web-example.export to export references from /usr/share/doc/bibtexconv/exam- ples/ExampleReferences.bib to MyPublications.html as XHTML 1.1. bibtexconv /usr/share/doc/bibtexconv/examples/ExampleReferences.bib </usr/share/doc/bibtexconv/examples/text-example.export >MyPublications.txt Uses export script /usr/share/doc/bibtexconv/examples/text-example.export to export references from /usr/share/doc/bibtexconv/exam- ples/ExampleReferences.bib to MyPublications.txt as plain text. bibtexconv /usr/share/doc/bibtexconv/examples/ExampleReferences.bib -non-interactive -export-to-separate-xmls=reference. Convert all references to XML references to be includable in IETF Internet Drafts. For each reference, an own file is generated, named with the prefix "reference.", for example reference.Globecom2010.xml for entry Globecom2010. bibtexconv /usr/share/doc/bibtexconv/examples/ExampleReferences.bib -non-interactive -export-to-separate-bibtexs= Convert all references to BibTeX references. For each reference, an own file is generated, named with the prefix "", for example Globecom2010.bib for entry Globecom2010. bibtexconv May 12, 2012 bibtexconv
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